PCBN/PCD Keyway Milling Cutter

The PCBN/PCD Keyway Milling Cutter with true plunging capability features a unique center-cutting design where the cutting edges extend to the centerline, overcoming the limitations of traditional end mills and enabling genuine vertical plunging. Utilizing high-quality PCBN or PCD super-hard materials for the cutting edges combined with a precision-ground two-flute structure, it provides perfect dynamic balance while maintaining excellent chip evacuation. This design allows the cutter to perform axial feed directly into the workpiece for cavity machining, enabling efficient roughing without the need for pre-drilled pilot holes, while simultaneously ensuring very high surface quality during side wall milling. It offers a perfect solution for hard material machining in fields like mold making and aerospace.

● Revolutionary Plunging Capability: The center-cutting design enables true vertical plunging, significantly improving cavity machining efficiency.
● Exceptional Surface Finish: The precise symmetrical two-flute structure ensures perfect dynamic balance, achieving side milling surface quality within Ra 0.4 µm.
● Efficient Chip Evacuation & Heat Dissipation: Optimized flute geometry and the two-flute design ensure smooth chip removal and effective control of machining temperature.
● Extended Tool Life: PCBN/PCD super-hard materials provide excellent wear resistance, offering a tool life dozens of times longer than traditional carbide tools.

● Mold Manufacturing: Roughing and finishing of cavities in hardened mold steel via direct plunging, replacing the traditional drilling + milling process.
● Aerospace Industry: Efficient machining of cavities and contours in difficult-to-machine materials like high-temperature alloys and titanium alloys.
● Automotive Engine: Machining of complex cavities such as valve seats and flow guide channels in cast iron engine blocks and aluminum cylinder heads.